Finding the Fourth Proportional to 39,957,462.84, 55,141,347.47 and 21,622,748.34
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Solution
The fourth proportional to 39,957,462.84, 55,141,347.47 and 21,622,748.34 is: 29,839,419.09
Step by Step Solution
- Step 1: Write the proportion equation
39,957,462.84 : 55,141,347.47 = 21,622,748.34 : x - Step 2: Convert to fraction form
39,957,462.84/55,141,347.47 = 21,622,748.34/x - Step 3: Cross multiply
39,957,462.84x = 55,141,347.47 × 21,622,748.34 - Step 4: Simplify right side
39,957,462.84x = 1,192,307,479,364,192 - Step 5: Solve for x
x = 1,192,307,479,364,192/39,957,462.84 - Step 6: Final answer
x = 29,839,419.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.